CCI - RVS Exam Prep EXAM
2025/2026 | ACCURATE CURRENTLY
TESTING ACTUAL EXAM QUESTIONS
WITH DETAILED DEFINTIVE
SOLUTIONS ||A+ GRADED. 100%
GUARANTEED PASS!!!<BRAND NEW
VERSION>
1. TCD findings consistent with vasospasm following subarachnoid
hemorrhage would include:
a) absence of diastolic flow in the middle cerebral artery
b) greatly diminished diastolic flow in the middle cerebral artery
c) retrograde flow in the middle cerebral artery
d) greatly increased mean velocities in the middle cerebral artery
e) this is not a condition for which TCD is a useful modality - ANSWER
✓ d) greatly increased mean velocities in the middle cerebral artery
2. In TCD, the normal direction of flow in the vertebral artery is:
a) toward the beam
b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ b) away from the beam
3. Which of the following is NOT a condition for which TCD might be useful?
a) vasospasm following subarachnoid hemorrhage
b) determination of brain death
c) cerebral artery monitoring during surgery
d) carotid siphon stenosis
e) temporal arteritis - ANSWER ✓ e) temporal arteritis
4. In TCD, the normal direction of flow in the anterior cerebral artery is:
a) toward the beam
, b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ b) away from the beam
5. A localized increase in mean velocity from 50 to 150 cm/sec at a depth of
50 mm with the TCD transducer placed in the temporal window probably
indicates:
a) significant stenosis of the anterior cerebral artery
b) moderate generalized vasospasm
c) significant stenosis of the internal carotid at the siphon
d) significant vasospasm of the middle cerebral artery
e) significant stenosis of the middle cerebral artery - ANSWER ✓ e)
significant stenosis of the middle cerebral artery
6. In a handheld TCD, the angle of the beam relative to flow is assumed to be:
a) 0 deg
b) 30 deg
c) 45 deg exactly
d) 60 deg
e) 90 deg - ANSWER ✓ a) 0 deg
7. You perform TCD, insonating the left anterior cerebral artery. The flow is
toward the beam. This finding suggests:
a) ipsilateral carotid obstruction, with right-to-left collateralization
b) contralateral carotid obstruction, with left-to-right collateralization
c) ipsilateral carotid obstruction, with posterior-to-anterior
collateralization
d) contralateralsiphon disease
e) nothing of diagnostic significance - ANSWER ✓ a) ipsilateral carotid
obstruction, with right-to-left collateralization
8. In using continuous-wave Doppler with spectral analysis to assess the
internal carotid artery, which of the following operator-induced errors would
most likely result in a falsely LOW frequency shift?
a) overdriving the Doppler signal gain
b) allowing the signal beam to overlap both an artery and a vein
c) changing to a higher-frequency transducer
d) leaving the wall filter on
, e) increase the beam angle to 70 deg - ANSWER ✓ e) increase the beam
angle to 70 deg
9. Among the chief limitations of continuous-wave Doppler is (are):
a) Depth information is not possible; precise location of flow pattern
cannot be determined.
b) the two-transducer system is inherently more expensive.
c) polarity of the reflected signal frequency shift cannot be determined;
direction of blood flow cannot be defined.
d) FFT spectral analysis cannot be applied to continuous-wave Doppler
signal information.
e) the sample volume is too small to interrogate deeper vessels. -
ANSWER ✓ a) Depth information is not possible; precise location of
flow pattern cannot be determined.
10. In TCD, the normal direction of flow in the middle cerebral artery is:
a) toward the beam
b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ a) toward the beam
11. Which of the following imaging transducer frequencies could appropriately
be used for assessment of the carotid arteries?
a) 10 MHz
b) 5 MHz
c) 2.5 MHz
d) 0.3 MHz
e) A and B - ANSWER ✓ e) A and B
12. Which of the following is (are) true regarding axial resolution in carotid
imaging?
a) differentiates soft plaque from blood
b) resolves two targets positioned one in front of another along the axis
of beam propagation
c) improves the observer's ability to estimate vessel wall thickness
d) determines the absolute depth of penetration of ultrasound beam at a
given frequency
e) A and D
2025/2026 | ACCURATE CURRENTLY
TESTING ACTUAL EXAM QUESTIONS
WITH DETAILED DEFINTIVE
SOLUTIONS ||A+ GRADED. 100%
GUARANTEED PASS!!!<BRAND NEW
VERSION>
1. TCD findings consistent with vasospasm following subarachnoid
hemorrhage would include:
a) absence of diastolic flow in the middle cerebral artery
b) greatly diminished diastolic flow in the middle cerebral artery
c) retrograde flow in the middle cerebral artery
d) greatly increased mean velocities in the middle cerebral artery
e) this is not a condition for which TCD is a useful modality - ANSWER
✓ d) greatly increased mean velocities in the middle cerebral artery
2. In TCD, the normal direction of flow in the vertebral artery is:
a) toward the beam
b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ b) away from the beam
3. Which of the following is NOT a condition for which TCD might be useful?
a) vasospasm following subarachnoid hemorrhage
b) determination of brain death
c) cerebral artery monitoring during surgery
d) carotid siphon stenosis
e) temporal arteritis - ANSWER ✓ e) temporal arteritis
4. In TCD, the normal direction of flow in the anterior cerebral artery is:
a) toward the beam
, b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ b) away from the beam
5. A localized increase in mean velocity from 50 to 150 cm/sec at a depth of
50 mm with the TCD transducer placed in the temporal window probably
indicates:
a) significant stenosis of the anterior cerebral artery
b) moderate generalized vasospasm
c) significant stenosis of the internal carotid at the siphon
d) significant vasospasm of the middle cerebral artery
e) significant stenosis of the middle cerebral artery - ANSWER ✓ e)
significant stenosis of the middle cerebral artery
6. In a handheld TCD, the angle of the beam relative to flow is assumed to be:
a) 0 deg
b) 30 deg
c) 45 deg exactly
d) 60 deg
e) 90 deg - ANSWER ✓ a) 0 deg
7. You perform TCD, insonating the left anterior cerebral artery. The flow is
toward the beam. This finding suggests:
a) ipsilateral carotid obstruction, with right-to-left collateralization
b) contralateral carotid obstruction, with left-to-right collateralization
c) ipsilateral carotid obstruction, with posterior-to-anterior
collateralization
d) contralateralsiphon disease
e) nothing of diagnostic significance - ANSWER ✓ a) ipsilateral carotid
obstruction, with right-to-left collateralization
8. In using continuous-wave Doppler with spectral analysis to assess the
internal carotid artery, which of the following operator-induced errors would
most likely result in a falsely LOW frequency shift?
a) overdriving the Doppler signal gain
b) allowing the signal beam to overlap both an artery and a vein
c) changing to a higher-frequency transducer
d) leaving the wall filter on
, e) increase the beam angle to 70 deg - ANSWER ✓ e) increase the beam
angle to 70 deg
9. Among the chief limitations of continuous-wave Doppler is (are):
a) Depth information is not possible; precise location of flow pattern
cannot be determined.
b) the two-transducer system is inherently more expensive.
c) polarity of the reflected signal frequency shift cannot be determined;
direction of blood flow cannot be defined.
d) FFT spectral analysis cannot be applied to continuous-wave Doppler
signal information.
e) the sample volume is too small to interrogate deeper vessels. -
ANSWER ✓ a) Depth information is not possible; precise location of
flow pattern cannot be determined.
10. In TCD, the normal direction of flow in the middle cerebral artery is:
a) toward the beam
b) away from the beam
c) bidirectional
d) dependent on the cardiac cycle
e) not detectable with TCD - ANSWER ✓ a) toward the beam
11. Which of the following imaging transducer frequencies could appropriately
be used for assessment of the carotid arteries?
a) 10 MHz
b) 5 MHz
c) 2.5 MHz
d) 0.3 MHz
e) A and B - ANSWER ✓ e) A and B
12. Which of the following is (are) true regarding axial resolution in carotid
imaging?
a) differentiates soft plaque from blood
b) resolves two targets positioned one in front of another along the axis
of beam propagation
c) improves the observer's ability to estimate vessel wall thickness
d) determines the absolute depth of penetration of ultrasound beam at a
given frequency
e) A and D
